2P26

Structure of the PHE2 and PHE3 fragments of the integrin beta2 subunit

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	291	0.2M Magnesium acetate, 0.1M sodium acetate, pH4.6, 18% PEG3350, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.89	34.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.489	α = 90
b = 30.853	β = 94.29
c = 65.157	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray					2006-08-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.75	27.87					21822

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1YUK	1.75	27.87	21815	1117	91.34	0.207	0.204	0.253	RANDOM	20.372

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.21		0.2	-0.02		0.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.744
r_dihedral_angle_3_deg	15.033
r_dihedral_angle_4_deg	12.783
r_dihedral_angle_1_deg	5.817
r_scangle_it	1.794
r_angle_refined_deg	1.169
r_scbond_it	1.101
r_mcangle_it	0.649
r_mcbond_it	0.378
r_nbtor_refined	0.301
r_nbd_refined	0.189
r_symmetry_vdw_refined	0.185
r_symmetry_hbond_refined	0.133
r_xyhbond_nbd_refined	0.111
r_chiral_restr	0.08
r_bond_refined_d	0.007
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2156
Nucleic Acid Atoms
Solvent Atoms	268
Heterogen Atoms	42

Software

Software
Software Name	Purpose
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction
SCALA	data scaling